Heat treatment apparatus
AssigneesIHI Corporation, IHI Machinery and Furnace Co., Ltd.
InventorKazuhiko Katsumata
Life of this patent
Estimating the term…
Abstract
This heat treatment apparatus is configured such that a treating target is conveyed via an intermediate conveyance chamber and accommodated in a heating chamber. The heat treatment apparatus is provided with a gas cooling chamber that is disposed adjacent to the intermediate conveyance chamber and in which the treating target is cooled using a cooling gas containing an oxidizer.
Claims12
A heat treatment apparatus configured such that a treating target is conveyed via an intermediate conveyance chamber and accommodated in a heating chamber, the heat treatment apparatus comprising:
- a gas cooling chamber that is disposed adjacent to the intermediate conveyance chamber and in which the treating target is cooled using a cooling gas containing an oxidizer;
- a circulation chamber having a first end and a second end, the first end forming a gas blow-in port extending toward the treating target within the gas cooling chamber, the second end forming a gas exhaust port extending toward the treating target so as to face the gas blow-in port with the treating target interposed therebetween;
- an exhaust device that evacuates the gas cooling chamber through the circulation chamber;
- cooling gas supply means configured to supply the cooling gas to the gas cooling chamber through the circulation chamber;
- a blower that is provided at an intermediate portion of the circulation chamber and causes the cooling gas to flow;
- and
- a control device that causes the exhaust device to evacuate the gas cooling chamber before the cooling gas is supplied to the gas cooling chamber, starts the blower before the cooling gas is supplied to the gas cooling chamber, and causes the cooling gas supply means to supply the cooling gas to the gas cooling chamber after the blower is started.
A heat treatment apparatus comprising:
- a heating chamber;
- a gas cooling chamber in which a treating target is cooled using a cooling gas containing an oxidizer;
- a circulation chamber having a first end and a second end, the first end forming a gas blow-in port extending toward the treating target within the gas cooling chamber, the second end forming a gas exhaust port extending toward the treating target so as to face the gas blow-in port with the treating target interposed therebetween;
- an exhaust device that evacuates the gas cooling chamber through the circulation chamber;
- cooling gas supply means configured to supply the cooling gas to the gas cooling chamber;
- a blower that is provided at an intermediate portion of the circulation chamber and causes the cooling gas to flow;
- and
- a control device that causes the exhaust device to evacuate the gas cooling chamber before the cooling gas is supplied to the gas cooling chamber, starts the blower before the cooling gas is supplied to the gas cooling chamber, and causes the cooling gas supply means to supply the cooling gas to the gas cooling chamber after the blower is started.
Dependencies are inferred from the claim text.